This is my first post. Then forgive me if this is off-topic for this list and ignore it :)

I need to assign public ips directly to my instances (not using floating ips). The packstack installation out-of-the-box do not enable dhcp on the public_net and then the ips are not assigned to the instances. How could I solve this?

To be clear I need this:

--------- eth0 (192.168.66.1)

             |

             | (br0 - 192.168.55.1) ----------------- VM (192.168.55.2)

                                                              VM (192.168.55.3)

VM get ip by dhcp and gw is 192.168.55.1

eth0 and br0 have ip_forwarding enabled.

Thank you in advance.

Regards,

Victor